12806506 has 8 divisors (see below), whose sum is σ = 19234080. Its totient is φ = 6395148.

The previous prime is 12806489. The next prime is 12806527. The reversal of 12806506 is 60560821.

12806506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (2404260).

Almost surely, 2^12806506 is an apocalyptic number.

12806506 is a deficient number, since it is larger than the sum of its proper divisors (6427574).

12806506 is an equidigital number, since it uses as much as digits as its factorization.

12806506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 12806506 is about 3578.6178896328. The cubic root of 12806506 is about 233.9610449678.

The spelling of 12806506 in words is "twelve million, eight hundred six thousand, five hundred six".